| 摘要 |
PROBLEM TO BE SOLVED: To provide a screw for a resin extruder which can prevent a resin material from heat deleterioration and enables uniform kneading of a filler by dispersing it inside the resin without damaging the filler and sufficient kneading of different resin materials, the resin extruder, and a pelletizing method thereof. SOLUTION: The screw 10 for the resin extruder has a bite part 11a which performs simultaneous uptaking and feeding of the resin material, a high compression pressure dissolution starting part 11b which initiates simultaneous pressurizing and dissolution of the heated resin material and a high compression pressure secondary dissolution part 11c which performs further pressurizing and complete dissolution of the resin material. In addition, high compression pressure ultrakneading parts 11a-1 and 2 having a plurality of juxtaposed rows of gear-like uneven sections are arranged halfway of the screw 10 for the resin extruder in place of the helical impeller blade 12 by dividing a helical impeller blade 12 of a screw body 10a. COPYRIGHT: (C)2008,JPO&INPIT |
